More water is not always better. For example; cacti only need water about every two weeks, the same with succulent plants. Not every plant needs to be watered every day, or the plant may be overwatered and die.
1.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element that reacts with water to produce a lilac flame
2.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element used as an inert atmosphere
3.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element that has a valency of 3
4.Write a balanced chemical equation for the reaction between potassium and water. (Non-anonymous question). .
(1 Point)
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5.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element with a fixed valency of 2 that not is not in group 2
Help
<h3>
Answer: CO2</h3>
Explanation:
Well C2H6 there are 2 carbon and 6 hydrogen atoms
and having no number on the right of the letter means there is only one atom
Answer: The correct answer is 1%: exponential decay.
Explanation: We are given a function:
...(1)
To determine the percentage rate of change in function, we compare the given function with the general form of exponent function, which is:
...(2)
Comparing both the equations, we get:
We take 'r' in percentage, so converting this above value in percentage, we get:
As the value of 'r' is negative, it means that the exponent is decaying, so the percentage rate of change in function will be 1% and it will be exponential decay.
Answer:
C
Explanation:
The 3 goes to every term in the molecule
3 NHO3
So its
3x1 N's
3x1 H's
3x3 O's
